Yeah, if you read his entire post, he says that he knows that multiple
inheritance isn't allowed in Java. It looks to me like you'll have to
make CommonFunctions an interface. If the methods in CommonFunctions
actually are identical for both MyAction and MyDispatchAction, you could
avoid having duplicate code in the two classes by deligating to a third
object that actually implements the methods. What you would end up with
would look something like this:
MyAction extends Action implements CommonFunctions {
private CommonFunctionsImpl common = new CommonFunctionsImpl();
... methods in CommonFunctions interface that just call the common
object above to the real work ...
}
MyDispatchAction extends DispatchAction implements CommonFunctions {
private CommonFunctionsImpl common = new CommonFunctionsImpl();
... methods in CommonFunctions interface that just call the common
object above to the real work ...
}
CommonFunctionsImpl implements CommonFunctions {
... methods that do the real work ...
}
--Cory
Cory R. Newey
[EMAIL PROTECTED]
Senior Software Engineer
Novell, the leading provider of Net services software
>>> [EMAIL PROTECTED] 01/31/03 08:41AM >>>
I'm going to save you from getting flamed.... java does not allow
multiple
inheritance. You can only extend from a single Object.
-Jacob
| -----Original Message-----
| From: Ashish Kulkarni [mailto:[EMAIL PROTECTED]]
| Sent: Friday, January 31, 2003 9:34 AM
| To: [EMAIL PROTECTED]
| Subject: one desing question, Revisited
|
| Hi,
|
| When i was thinking about my problem, I think what i
| want to do in multiple inhereteance
| I want to define a class called CommonFunctions , this
| call will have methods which are common, (As name
| suggest)
| now i have to do some thing like
| public class MyAction extends Action, CommonFuntions
|
| and public class MyDisptachAction extends
| DispatchAction, CommonFuntions
|
| By doing this i will be able to access all the methods
| in the class which sybclasses MyAction or
| MyDispatchAction
| I know the code above is not possible to do, but i
| want to do some thing like that..
| So what are the ways of achieving it
|
| =====
| A$HI$H
|
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